Dynamic Instability Analysis of a Rotating Ship Shaft under a Periodic Axial Force by Discrete Singular Convolution

Figure 10

Dynamic instability regions with different numbers of blades and = 0.05. “—,” “- -,” instability region boundary with = 5, = 3 by Floquet’s method, “●” “○,” “▼” “,” stable and unstable data with = 5, = 3 by DSC method.